SimpleServer.xs

   1 /*
   2  * $Id: SimpleServer.xs,v 1.76 2007-08-20 21:27:50 mike Exp $
   3  * ----------------------------------------------------------------------
   4  *
   5  * Copyright (c) 2000-2004, Index Data.
   6  *
   7  * Permission to use, copy, modify, distribute, and sell this software and
   8  * its documentation, in whole or in part, for any purpose, is hereby granted,
   9  * provided that:
  10  *
  11  * 1. This copyright and permission notice appear in all copies of the
  12  * software and its documentation. Notices of copyright or attribution
  13  * which appear at the beginning of any file must remain unchanged.
  14  *
  15  * 2. The name of Index Data or the individual authors may not be used to
  16  * endorse or promote products derived from this software without specific
  17  * prior written permission.
  18  *
  19  * THIS SOFTWARE IS PROVIDED "AS IS" AND WITHOUT WARRANTY OF ANY KIND,
  20  * EXPRESS, IMPLIED, OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY
  21  * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
  22  * IN NO EVENT SHALL INDEX DATA BE LIABLE FOR ANY SPECIAL, INCIDENTAL,
  23  * INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, OR ANY DAMAGES
  24  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER OR
  25  * NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF
  26  * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
  27  * OF THIS SOFTWARE.
  28  */
  29
  30 #include "EXTERN.h"
  31 #include "perl.h"
  32 #include "proto.h"
  33 #include "embed.h"
  34 #include "XSUB.h"
  35 #include <assert.h>
  36 #include <yaz/backend.h>
  37 #include <yaz/log.h>
  38 #include <yaz/wrbuf.h>
  39 #include <yaz/querytowrbuf.h>
  40 #include <stdio.h>
  41 #include <yaz/mutex.h>
  42 #include <yaz/oid_db.h>
  43 #ifdef WIN32
  44 #else
  45 #include <unistd.h>
  46 #endif
  47 #include <stdlib.h>
  48 #include <ctype.h>
  49 #define GRS_MAX_FIELDS 500
  50 #ifdef ASN_COMPILED
  51 #include <yaz/ill.h>
  52 #endif
  53 #ifndef sv_undef                /* To fix the problem with Perl 5.6.0 */
  54 #define sv_undef PL_sv_undef
  55 #endif
  56
  57 YAZ_MUTEX simpleserver_mutex;
  58
  59 typedef struct {
  60         SV *ghandle;    /* Global handle specified at creation */
  61         SV *handle;     /* Per-connection handle set at Init */
  62 #if 0
  63 /* ### These callback-reference elements are never used! */
  64         SV *init_ref;
  65         SV *close_ref;
  66         SV *sort_ref;
  67         SV *search_ref;
  68         SV *fetch_ref;
  69         SV *present_ref;
  70         SV *esrequest_ref;
  71         SV *delete_ref;
  72         SV *scan_ref;
  73         SV *explain_ref;
  74 #endif /*0*/
  75         NMEM nmem;
  76         int stop_flag;  /* is used to stop server prematurely .. */
  77 } Zfront_handle;
  78
  79 #define ENABLE_STOP_SERVER 0
  80
  81 SV *_global_ghandle = NULL; /* To be copied into zhandle then ignored */
  82 SV *init_ref = NULL;
  83 SV *close_ref = NULL;
  84 SV *sort_ref = NULL;
  85 SV *search_ref = NULL;
  86 SV *fetch_ref = NULL;
  87 SV *present_ref = NULL;
  88 SV *esrequest_ref = NULL;
  89 SV *delete_ref = NULL;
  90 SV *scan_ref = NULL;
  91 SV *explain_ref = NULL;
  92 PerlInterpreter *root_perl_context;
  93
  94 #define GRS_BUF_SIZE 8192
  95
  96
  97 /*
  98  * Inspects the SV indicated by svp, and returns a null pointer if
  99  * it's an undefined value, or a string allocation from `stream'
 100  * otherwise.  Using this when filling in addinfo avoids those
 101  * irritating "Use of uninitialized value in subroutine entry"
 102  * warnings from Perl.
 103  */
 104 char *string_or_undef(SV **svp, ODR stream) {
 105         STRLEN len;
 106         char *ptr, *buf;
 107
 108         if (!SvOK(*svp))
 109                 return 0;
 110
 111         ptr = SvPV(*svp, len);
 112         buf = (char*) odr_malloc(stream, len+1);
 113         strcpy(buf, ptr);
 114         return buf;
 115 }
 116
 117
 118 CV * simpleserver_sv2cv(SV *handler) {
 119     STRLEN len;
 120     char *buf;
 121
 122     if (SvPOK(handler)) {
 123         CV *ret;
 124         buf = SvPV( handler, len);
 125         if ( !( ret = perl_get_cv(buf, FALSE ) ) ) {
 126             fprintf( stderr, "simpleserver_sv2cv: No such handler '%s'\n\n", buf );
 127             exit(1);
 128         }
 129
 130         return ret;
 131     } else {
 132         return (CV *) handler;
 133     }
 134 }
 135
 136 /* debugging routine to check for destruction of Perl interpreters */
 137 #ifdef USE_ITHREADS
 138 void tst_clones(void)
 139 {
 140     int i;
 141     PerlInterpreter *parent = PERL_GET_CONTEXT;
 142     for (i = 0; i<5000; i++)
 143     {
 144         PerlInterpreter *perl_interp;
 145
 146         PERL_SET_CONTEXT(parent);
 147         PL_perl_destruct_level = 2;
 148         perl_interp = perl_clone(parent, CLONEf_CLONE_HOST);
 149         PL_perl_destruct_level = 2;
 150         PERL_SET_CONTEXT(perl_interp);
 151         perl_destruct(perl_interp);
 152         perl_free(perl_interp);
 153     }
 154     exit (0);
 155 }
 156 #endif
 157
 158 int simpleserver_clone(void) {
 159 #ifdef USE_ITHREADS
 160      yaz_mutex_enter(simpleserver_mutex);
 161      if (1)
 162      {
 163          PerlInterpreter *current = PERL_GET_CONTEXT;
 164
 165          /* if current is unset, then we're in a new thread with
 166           * no Perl interpreter for it. So we must create one .
 167           * This will only happen when threaded is used..
 168           */
 169          if (!current) {
 170              PerlInterpreter *perl_interp;
 171              PERL_SET_CONTEXT( root_perl_context );
 172              perl_interp = perl_clone(root_perl_context, CLONEf_CLONE_HOST);
 173              PERL_SET_CONTEXT( perl_interp );
 174          }
 175      }
 176      yaz_mutex_leave(simpleserver_mutex);
 177 #endif
 178      return 0;
 179 }
 180
 181
 182 void simpleserver_free(void) {
 183     yaz_mutex_enter(simpleserver_mutex);
 184     if (1)
 185     {
 186         PerlInterpreter *current_interp = PERL_GET_CONTEXT;
 187
 188         /* If current Perl Interp is different from root interp, then
 189          * we're in threaded mode and we must destroy..
 190          */
 191         if (current_interp != root_perl_context) {
 192             PL_perl_destruct_level = 2;
 193             PERL_SET_CONTEXT(current_interp);
 194             perl_destruct(current_interp);
 195             perl_free(current_interp);
 196         }
 197     }
 198     yaz_mutex_leave(simpleserver_mutex);
 199 }
 200
 201
 202 Z_GenericRecord *read_grs1(char *str, ODR o)
 203 {
 204         int type, ivalue;
 205         char line[GRS_BUF_SIZE+1], *buf, *ptr, *original;
 206         char value[GRS_BUF_SIZE+1];
 207         Z_GenericRecord *r = 0;
 208
 209         original = str;
 210         r = (Z_GenericRecord *)odr_malloc(o, sizeof(*r));
 211         r->elements = (Z_TaggedElement **) odr_malloc(o, sizeof(Z_TaggedElement*) * GRS_MAX_FIELDS);
 212         r->num_elements = 0;
 213
 214         for (;;)
 215         {
 216                 Z_TaggedElement *t;
 217                 Z_ElementData *c;
 218                 int len;
 219
 220                 ptr = strchr(str, '\n');
 221                 if (!ptr) {
 222                         return r;
 223                 }
 224                 len = ptr - str;
 225                 if (len > GRS_BUF_SIZE) {
 226                     yaz_log(YLOG_WARN, "GRS string too long - truncating (%d > %d)", len, GRS_BUF_SIZE);
 227                     len = GRS_BUF_SIZE;
 228                 }
 229                 strncpy(line, str, len);
 230                 line[len] = 0;
 231                 buf = line;
 232                 str = ptr + 1;
 233                 while (*buf && isspace(*buf))
 234                         buf++;
 235                 if (*buf == '}') {
 236                         memmove(original, str, strlen(str));
 237                         return r;
 238                 }
 239                 if (sscanf(buf, "(%d,%[^)])", &type, value) != 2)
 240                 {
 241                         yaz_log(YLOG_WARN, "Bad data in '%s'", buf);
 242                         return r;
 243                 }
 244                 if (!type && *value == '0')
 245                         return r;
 246                 if (!(buf = strchr(buf, ')')))
 247                         return r;
 248                 buf++;
 249                 while (*buf && isspace(*buf))
 250                         buf++;
 251                 if (r->num_elements >= GRS_MAX_FIELDS)
 252                 {
 253                         yaz_log(YLOG_WARN, "Max number of GRS-1 elements exceeded [GRS_MAX_FIELDS=%d]", GRS_MAX_FIELDS);
 254                         exit(0);
 255                 }
 256                 r->elements[r->num_elements] = t = (Z_TaggedElement *) odr_malloc(o, sizeof(Z_TaggedElement));
 257                 t->tagType = odr_intdup(o, type);
 258                 t->tagValue = (Z_StringOrNumeric *)
 259                         odr_malloc(o, sizeof(Z_StringOrNumeric));
 260                 if ((ivalue = atoi(value)))
 261                 {
 262                         t->tagValue->which = Z_StringOrNumeric_numeric;
 263                         t->tagValue->u.numeric = odr_intdup(o, ivalue);
 264                 }
 265                 else
 266                 {
 267                         t->tagValue->which = Z_StringOrNumeric_string;
 268                         t->tagValue->u.string = odr_strdup(o, value);
 269                 }
 270                 t->tagOccurrence = 0;
 271                 t->metaData = 0;
 272                 t->appliedVariant = 0;
 273                 t->content = c = (Z_ElementData *)odr_malloc(o, sizeof(Z_ElementData));
 274                 if (*buf == '{')
 275                 {
 276                         c->which = Z_ElementData_subtree;
 277                         c->u.subtree = read_grs1(str, o);
 278                 }
 279                 else
 280                 {
 281                         c->which = Z_ElementData_string;
 282                         c->u.string = odr_strdup(o, buf);
 283                 }
 284                 r->num_elements++;
 285         }
 286 }
 287
 288
 289
 290 static void oid2str(Odr_oid *o, WRBUF buf)
 291 {
 292     for (; *o >= 0; o++) {
 293         char ibuf[16];
 294         sprintf(ibuf, "%d", *o);
 295         wrbuf_puts(buf, ibuf);
 296         if (o[1] > 0)
 297             wrbuf_putc(buf, '.');
 298     }
 299 }
 300
 301 WRBUF oid2dotted(Odr_oid *oid)
 302 {
 303     WRBUF buf = wrbuf_alloc();
 304     oid2str(oid, buf);
 305     return buf;
 306 }
 307
 308
 309 WRBUF zquery2pquery(Z_Query *q)
 310 {
 311     WRBUF buf = wrbuf_alloc();
 312
 313     if (q->which != Z_Query_type_1 && q->which != Z_Query_type_101)
 314         return 0;
 315     yaz_rpnquery_to_wrbuf(buf, q->u.type_1);
 316     return buf;
 317 }
 318
 319
 320 /* Lifted verbatim from Net::Z3950 yazwrap/util.c */
 321 #include <stdarg.h>
 322 void fatal(char *fmt, ...)
 323 {
 324     va_list ap;
 325
 326     fprintf(stderr, "FATAL (SimpleServer): ");
 327     va_start(ap, fmt);
 328     vfprintf(stderr, fmt, ap);
 329     va_end(ap);
 330     fprintf(stderr, "\n");
 331     abort();
 332 }
 333
 334
 335 /* Lifted verbatim from Net::Z3950 yazwrap/receive.c */
 336 /*
 337  * Creates a new Perl object of type `class'; the newly-created scalar
 338  * that is a reference to the blessed thingy `referent' is returned.
 339  */
 340 static SV *newObject(char *class, SV *referent)
 341 {
 342     HV *stash;
 343     SV *sv;
 344
 345     sv = newRV_noinc((SV*) referent);
 346     stash = gv_stashpv(class, 0);
 347     if (stash == 0)
 348         fatal("attempt to create object of undefined class '%s'", class);
 349     /*assert(stash != 0);*/
 350     sv_bless(sv, stash);
 351     return sv;
 352 }
 353
 354
 355 /* Lifted verbatim from Net::Z3950 yazwrap/receive.c */
 356 static void setMember(HV *hv, char *name, SV *val)
 357 {
 358     /* We don't increment `val's reference count -- I think this is
 359      * right because it's created with a refcount of 1, and in fact
 360      * the reference via this hash is the only reference to it in
 361      * general.
 362      */
 363     if (!hv_store(hv, name, (U32) strlen(name), val, (U32) 0))
 364         fatal("couldn't store member in hash");
 365 }
 366
 367
 368 /* Lifted verbatim from Net::Z3950 yazwrap/receive.c */
 369 static SV *translateOID(Odr_oid *x)
 370 {
 371     /* Yaz represents an OID by an int array terminated by a negative
 372      * value, typically -1; we represent it as a reference to a
 373      * blessed scalar string of "."-separated elements.
 374      */
 375     char buf[1000];
 376     int i;
 377
 378     *buf = '\0';
 379     for (i = 0; x[i] >= 0; i++) {
 380         sprintf(buf + strlen(buf), "%d", (int) x[i]);
 381         if (x[i+1] >- 0)
 382             strcat(buf, ".");
 383     }
 384
 385     /*
 386      * ### We'd like to return a blessed scalar (string) here, but of
 387      *  course you can't do that in Perl: only references can be
 388      *  blessed, so we'd have to return a _reference_ to a string, and
 389      *  bless _that_.  Better to do without the blessing, I think.
 390      */
 391     if (1) {
 392         return newSVpv(buf, 0);
 393     } else {
 394         return newObject("Net::Z3950::APDU::OID", newSVpv(buf, 0));
 395     }
 396 }
 397
 398
 399 static SV *apt2perl(Z_AttributesPlusTerm *at)
 400 {
 401     SV *sv;
 402     HV *hv;
 403     AV *av;
 404
 405     if (at->term->which != Z_Term_general)
 406         fatal("can't handle RPN terms other than general");
 407
 408     sv = newObject("Net::Z3950::RPN::Term", (SV*) (hv = newHV()));
 409     if (at->attributes) {
 410         int i;
 411         SV *attrs = newObject("Net::Z3950::RPN::Attributes",
 412                               (SV*) (av = newAV()));
 413         for (i = 0; i < at->attributes->num_attributes; i++) {
 414             Z_AttributeElement *elem = at->attributes->attributes[i];
 415             HV *hv2;
 416             SV *tmp = newObject("Net::Z3950::RPN::Attribute",
 417                                 (SV*) (hv2 = newHV()));
 418             if (elem->attributeSet)
 419                 setMember(hv2, "attributeSet",
 420                           translateOID(elem->attributeSet));
 421             setMember(hv2, "attributeType",
 422                       newSViv(*elem->attributeType));
 423             if (elem->which == Z_AttributeValue_numeric) {
 424                 setMember(hv2, "attributeValue",
 425                           newSViv(*elem->value.numeric));
 426             } else {
 427                 assert(elem->which == Z_AttributeValue_complex);
 428                 Z_ComplexAttribute *c = elem->value.complex;
 429                 Z_StringOrNumeric *son;
 430                 /* We ignore semantic actions and multiple values */
 431                 assert(c->num_list > 0);
 432                 son = c->list[0];
 433                 if (son->which == Z_StringOrNumeric_numeric) {
 434                     setMember(hv2, "attributeValue",
 435                               newSViv(*son->u.numeric));
 436                 } else { /*Z_StringOrNumeric_string*/
 437                     setMember(hv2, "attributeValue",
 438                               newSVpv(son->u.string, 0));
 439                 }
 440             }
 441             av_push(av, tmp);
 442         }
 443         setMember(hv, "attributes", attrs);
 444     }
 445     setMember(hv, "term", newSVpv((char*) at->term->u.general->buf,
 446                                   at->term->u.general->len));
 447     return sv;
 448 }
 449
 450
 451 static SV *rpn2perl(Z_RPNStructure *s)
 452 {
 453     SV *sv;
 454     HV *hv;
 455     AV *av;
 456     Z_Operand *o;
 457
 458     switch (s->which) {
 459     case Z_RPNStructure_simple:
 460         o = s->u.simple;
 461         switch (o->which) {
 462         case Z_Operand_resultSetId: {
 463             /* This code causes a SIGBUS on my machine, and I have no
 464                idea why.  It seems as clear as day to me */
 465             SV *sv2;
 466             char *rsid = (char*) o->u.resultSetId;
 467             /*printf("Encoding resultSetId '%s'\n", rsid);*/
 468             sv = newObject("Net::Z3950::RPN::RSID", (SV*) (hv = newHV()));
 469             /*printf("Made sv=0x%lx, hv=0x%lx\n", (unsigned long) sv ,(unsigned long) hv);*/
 470             sv2 = newSVpv(rsid, strlen(rsid));
 471             setMember(hv, "id", sv2);
 472             /*printf("Set hv{id} to 0x%lx\n", (unsigned long) sv2);*/
 473             return sv;
 474         }
 475
 476         case  Z_Operand_APT:
 477             return apt2perl(o->u.attributesPlusTerm);
 478
 479         default:
 480             fatal("unknown RPN simple type %d", (int) o->which);
 481         }
 482
 483     case Z_RPNStructure_complex: {
 484         SV *tmp;
 485         Z_Complex *c = s->u.complex;
 486         char *type = 0;         /* vacuous assignment satisfies gcc -Wall */
 487         switch (c->roperator->which) {
 488         case Z_Operator_and:     type = "Net::Z3950::RPN::And";    break;
 489         case Z_Operator_or:      type = "Net::Z3950::RPN::Or";     break;
 490         case Z_Operator_and_not: type = "Net::Z3950::RPN::AndNot"; break;
 491         case Z_Operator_prox:    fatal("proximity not yet supported");
 492         default: fatal("unknown RPN operator %d", (int) c->roperator->which);
 493         }
 494         sv = newObject(type, (SV*) (av = newAV()));
 495         if ((tmp = rpn2perl(c->s1)) == 0)
 496             return 0;
 497         av_push(av, tmp);
 498         if ((tmp = rpn2perl(c->s2)) == 0)
 499             return 0;
 500         av_push(av, tmp);
 501         return sv;
 502     }
 503
 504     default:
 505         fatal("unknown RPN node type %d", (int) s->which);
 506     }
 507
 508     return 0;
 509 }
 510
 511
 512 /* Decode the Z_SortAttributes struct and store the whole thing into the
 513  * hash by reference
 514  */
 515 int simpleserver_ExpandSortAttributes (HV *sort_spec, Z_SortAttributes *sattr)
 516 {
 517     WRBUF attrset_wr = wrbuf_alloc();
 518     AV *list = newAV();
 519     Z_AttributeList *attr_list = sattr->list;
 520     int i;
 521
 522     oid2str(sattr->id, attrset_wr);
 523     hv_store(sort_spec, "ATTRSET", 7,
 524              newSVpv(attrset_wr->buf, attrset_wr->pos), 0);
 525     wrbuf_destroy(attrset_wr);
 526
 527     hv_store(sort_spec, "SORT_ATTR", 9, newRV( sv_2mortal( (SV*) list ) ), 0);
 528
 529     for (i = 0; i < attr_list->num_attributes; i++)
 530     {
 531         Z_AttributeElement *attr = *attr_list->attributes++;
 532         HV *attr_spec = newHV();
 533
 534         av_push(list, newRV( sv_2mortal( (SV*) attr_spec ) ));
 535         hv_store(attr_spec, "ATTR_TYPE", 9, newSViv(*attr->attributeType), 0);
 536
 537         if (attr->which == Z_AttributeValue_numeric)
 538         {
 539             hv_store(attr_spec, "ATTR_VALUE", 10,
 540                      newSViv(*attr->value.numeric), 0);
 541         } else {
 542             return 0;
 543         }
 544     }
 545
 546     return 1;
 547 }
 548
 549
 550 /* Decode the Z_SortKeySpec struct and store the whole thing in a perl hash */
 551 int simpleserver_SortKeySpecToHash (HV *sort_spec, Z_SortKeySpec *spec)
 552 {
 553     Z_SortElement *element = spec->sortElement;
 554
 555     hv_store(sort_spec, "RELATION", 8, newSViv(*spec->sortRelation), 0);
 556     hv_store(sort_spec, "CASE", 4, newSViv(*spec->caseSensitivity), 0);
 557     hv_store(sort_spec, "MISSING", 7, newSViv(spec->which), 0);
 558
 559     if (element->which == Z_SortElement_generic)
 560     {
 561         Z_SortKey *key = element->u.generic;
 562
 563         if (key->which == Z_SortKey_sortField)
 564         {
 565             hv_store(sort_spec, "SORTFIELD", 9,
 566                      newSVpv((char *) key->u.sortField, 0), 0);
 567         }
 568         else if (key->which == Z_SortKey_elementSpec)
 569         {
 570             Z_Specification *zspec = key->u.elementSpec;
 571
 572             hv_store(sort_spec, "ELEMENTSPEC_TYPE", 16,
 573                      newSViv(zspec->which), 0);
 574
 575             if (zspec->which == Z_Schema_oid)
 576             {
 577                 WRBUF elementSpec = wrbuf_alloc();
 578
 579                 oid2str(zspec->schema.oid, elementSpec);
 580                 hv_store(sort_spec, "ELEMENTSPEC_VALUE", 17,
 581                          newSVpv(elementSpec->buf, elementSpec->pos), 0);
 582                 wrbuf_destroy(elementSpec);
 583             }
 584             else if (zspec->which == Z_Schema_uri)
 585             {
 586                 hv_store(sort_spec, "ELEMENTSPEC_VALUE", 17,
 587                          newSVpv((char *) zspec->schema.uri, 0), 0);
 588             }
 589         }
 590         else if (key->which == Z_SortKey_sortAttributes)
 591         {
 592             return simpleserver_ExpandSortAttributes(sort_spec,
 593                                                      key->u.sortAttributes);
 594         }
 595         else
 596         {
 597             return 0;
 598         }
 599     }
 600     else
 601     {
 602         return 0;
 603     }
 604
 605     return 1;
 606 }
 607
 608
 609 static SV *zquery2perl(Z_Query *q)
 610 {
 611     SV *sv;
 612     HV *hv;
 613
 614     if (q->which != Z_Query_type_1 && q->which != Z_Query_type_101)
 615         return 0;
 616     sv = newObject("Net::Z3950::APDU::Query", (SV*) (hv = newHV()));
 617     if (q->u.type_1->attributeSetId)
 618         setMember(hv, "attributeSet",
 619                   translateOID(q->u.type_1->attributeSetId));
 620     setMember(hv, "query", rpn2perl(q->u.type_1->RPNStructure));
 621     return sv;
 622 }
 623
 624
 625 int bend_sort(void *handle, bend_sort_rr *rr)
 626 {
 627         HV *href;
 628         AV *aref;
 629         AV *sort_seq;
 630         SV **temp;
 631         SV *err_code;
 632         SV *err_str;
 633         SV *status;
 634         SV *point;
 635         STRLEN len;
 636         char *ptr;
 637         char *ODR_err_str;
 638         char **input_setnames;
 639         Zfront_handle *zhandle = (Zfront_handle *)handle;
 640         Z_SortKeySpecList *sort_spec = rr->sort_sequence;
 641         int i;
 642
 643         dSP;
 644         ENTER;
 645         SAVETMPS;
 646
 647         aref = newAV();
 648         input_setnames = rr->input_setnames;
 649         for (i = 0; i < rr->num_input_setnames; i++)
 650         {
 651             av_push(aref, newSVpv(*input_setnames++, 0));
 652         }
 653
 654         sort_seq = newAV();
 655         for (i = 0; i < sort_spec->num_specs; i++)
 656         {
 657             Z_SortKeySpec *spec = *sort_spec->specs++;
 658             HV *sort_spec = newHV();
 659
 660             if ( simpleserver_SortKeySpecToHash(sort_spec, spec) )
 661                 av_push(sort_seq, newRV( sv_2mortal( (SV*) sort_spec ) ));
 662             else
 663             {
 664                 rr->errcode = 207;
 665                 return 0;
 666             }
 667         }
 668
 669         href = newHV();
 670         hv_store(href, "INPUT", 5, newRV( (SV*) aref), 0);
 671         hv_store(href, "OUTPUT", 6, newSVpv(rr->output_setname, 0), 0);
 672         hv_store(href, "SEQUENCE", 8, newRV( (SV*) sort_seq), 0);
 673         hv_store(href, "GHANDLE", 7, newSVsv(zhandle->ghandle), 0);
 674         hv_store(href, "HANDLE", 6, zhandle->handle, 0);
 675         hv_store(href, "STATUS", 6, newSViv(0), 0);
 676         hv_store(href, "ERR_CODE", 8, newSViv(0), 0);
 677         hv_store(href, "ERR_STR", 7, newSVpv("", 0), 0);
 678
 679         PUSHMARK(sp);
 680
 681         XPUSHs(sv_2mortal(newRV( (SV*) href)));
 682
 683         PUTBACK;
 684
 685         perl_call_sv(sort_ref, G_SCALAR | G_DISCARD);
 686
 687         SPAGAIN;
 688
 689         temp = hv_fetch(href, "ERR_CODE", 8, 1);
 690         err_code = newSVsv(*temp);
 691
 692         temp = hv_fetch(href, "ERR_STR", 7, 1);
 693         err_str = newSVsv(*temp);
 694
 695         temp = hv_fetch(href, "STATUS", 6, 1);
 696         status = newSVsv(*temp);
 697
 698         temp = hv_fetch(href, "HANDLE", 6, 1);
 699         point = newSVsv(*temp);
 700
 701         hv_undef(href);
 702         av_undef(aref);
 703         av_undef(sort_seq);
 704
 705         sv_free( (SV*) aref);
 706         sv_free( (SV*) href);
 707         sv_free( (SV*) sort_seq);
 708
 709         rr->errcode = SvIV(err_code);
 710         rr->sort_status = SvIV(status);
 711
 712         ptr = SvPV(err_str, len);
 713         ODR_err_str = (char *)odr_malloc(rr->stream, len + 1);
 714         strcpy(ODR_err_str, ptr);
 715         rr->errstring = ODR_err_str;
 716         zhandle->handle = point;
 717
 718         sv_free(err_code);
 719         sv_free(err_str);
 720         sv_free(status);
 721
 722         PUTBACK;
 723         FREETMPS;
 724         LEAVE;
 725
 726         return 0;
 727 }
 728
 729
 730 int bend_search(void *handle, bend_search_rr *rr)
 731 {
 732         HV *href;
 733         AV *aref;
 734         SV **temp;
 735         int i;
 736         char **basenames;
 737         WRBUF query;
 738         SV *point;
 739         Zfront_handle *zhandle = (Zfront_handle *)handle;
 740         CV* handler_cv = 0;
 741         SV *rpnSV;
 742
 743         dSP;
 744         ENTER;
 745         SAVETMPS;
 746
 747         aref = newAV();
 748         basenames = rr->basenames;
 749         for (i = 0; i < rr->num_bases; i++)
 750         {
 751                 av_push(aref, newSVpv(*basenames++, 0));
 752         }
 753 #if ENABLE_STOP_SERVER
 754         if (rr->num_bases == 1 && !strcmp(rr->basenames[0], "XXstop"))
 755         {
 756                 zhandle->stop_flag = 1;
 757         }
 758 #endif
 759         href = newHV();
 760         hv_store(href, "SETNAME", 7, newSVpv(rr->setname, 0), 0);
 761         if (rr->srw_sortKeys && *rr->srw_sortKeys)
 762             hv_store(href, "SRW_SORTKEYS", 12, newSVpv(rr->srw_sortKeys, 0), 0);
 763         hv_store(href, "REPL_SET", 8, newSViv(rr->replace_set), 0);
 764         hv_store(href, "ERR_CODE", 8, newSViv(0), 0);
 765         hv_store(href, "ERR_STR", 7, newSVpv("", 0), 0);
 766         hv_store(href, "HITS", 4, newSViv(0), 0);
 767         hv_store(href, "DATABASES", 9, newRV( (SV*) aref), 0);
 768         hv_store(href, "GHANDLE", 7, newSVsv(zhandle->ghandle), 0);
 769         hv_store(href, "HANDLE", 6, zhandle->handle, 0);
 770         hv_store(href, "PID", 3, newSViv(getpid()), 0);
 771         if ((rpnSV = zquery2perl(rr->query)) != 0) {
 772             hv_store(href, "RPN", 3, rpnSV, 0);
 773         }
 774         query = zquery2pquery(rr->query);
 775         if (query)
 776         {
 777                 hv_store(href, "QUERY", 5, newSVpv((char *)query->buf, query->pos), 0);
 778         }
 779         else if (rr->query->which == Z_Query_type_104 &&
 780                  rr->query->u.type_104->which == Z_External_CQL) {
 781             hv_store(href, "CQL", 3,
 782                      newSVpv(rr->query->u.type_104->u.cql, 0), 0);
 783         }
 784         else
 785         {
 786                 rr->errcode = 108;
 787                 return 0;
 788         }
 789         PUSHMARK(sp);
 790
 791         XPUSHs(sv_2mortal(newRV( (SV*) href)));
 792
 793         PUTBACK;
 794
 795         handler_cv = simpleserver_sv2cv( search_ref );
 796         perl_call_sv( (SV *) handler_cv, G_SCALAR | G_DISCARD);
 797
 798         SPAGAIN;
 799
 800         temp = hv_fetch(href, "HITS", 4, 1);
 801         rr->hits = SvIV(*temp);
 802
 803         temp = hv_fetch(href, "ERR_CODE", 8, 1);
 804         rr->errcode = SvIV(*temp);
 805
 806         temp = hv_fetch(href, "ERR_STR", 7, 1);
 807         rr->errstring = string_or_undef(temp, rr->stream);
 808
 809         temp = hv_fetch(href, "HANDLE", 6, 1);
 810         point = newSVsv(*temp);
 811
 812         hv_undef(href);
 813         av_undef(aref);
 814
 815         zhandle->handle = point;
 816         sv_free( (SV*) aref);
 817         sv_free( (SV*) href);
 818         if (query)
 819             wrbuf_destroy(query);
 820         PUTBACK;
 821         FREETMPS;
 822         LEAVE;
 823         return 0;
 824 }
 825
 826
 827 /* ### I am not 100% about the memory management in this handler */
 828 int bend_delete(void *handle, bend_delete_rr *rr)
 829 {
 830         Zfront_handle *zhandle = (Zfront_handle *)handle;
 831         HV *href;
 832         CV* handler_cv;
 833         int i;
 834         SV **temp;
 835         SV *point;
 836
 837         dSP;
 838         ENTER;
 839         SAVETMPS;
 840
 841         href = newHV();
 842         hv_store(href, "GHANDLE", 7, newSVsv(zhandle->ghandle), 0);
 843         hv_store(href, "HANDLE", 6, zhandle->handle, 0);
 844         hv_store(href, "STATUS", 6, newSViv(0), 0);
 845
 846         PUSHMARK(sp);
 847         XPUSHs(sv_2mortal(newRV( (SV*) href)));
 848         PUTBACK;
 849
 850         handler_cv = simpleserver_sv2cv(delete_ref);
 851
 852         if (rr->function == 1) {
 853             /* Delete all result sets in the session */
 854             perl_call_sv( (SV *) handler_cv, G_SCALAR | G_DISCARD);
 855             temp = hv_fetch(href, "STATUS", 6, 1);
 856             rr->delete_status = SvIV(*temp);
 857         } else {
 858             rr->delete_status = 0;
 859             /*
 860              * For some reason, deleting two or more result-sets in
 861              * one operation goes horribly wrong, and ### I don't have
 862              * time to debug it right now.
 863              */
 864             if (rr->num_setnames > 1) {
 865                 rr->delete_status = 3; /* "System problem at target" */
 866                 /* There's no way to sent delete-msg using the GFS */
 867                 return;
 868             }
 869
 870             for (i = 0; i < rr->num_setnames; i++) {
 871                 hv_store(href, "SETNAME", 7, newSVpv(rr->setnames[i], 0), 0);
 872                 perl_call_sv( (SV *) handler_cv, G_SCALAR | G_DISCARD);
 873                 temp = hv_fetch(href, "STATUS", 6, 1);
 874                 rr->statuses[i] = SvIV(*temp);
 875                 if (rr->statuses[i] != 0)
 876                     rr->delete_status = rr->statuses[i];
 877             }
 878         }
 879
 880         SPAGAIN;
 881
 882         temp = hv_fetch(href, "HANDLE", 6, 1);
 883         point = newSVsv(*temp);
 884
 885         hv_undef(href);
 886
 887         zhandle->handle = point;
 888
 889         sv_free( (SV*) href);
 890
 891         PUTBACK;
 892         FREETMPS;
 893         LEAVE;
 894
 895         return 0;
 896 }
 897
 898
 899 int bend_fetch(void *handle, bend_fetch_rr *rr)
 900 {
 901         HV *href;
 902         SV **temp;
 903         SV *basename;
 904         SV *record;
 905         SV *last;
 906         SV *err_code;
 907         SV *err_string;
 908         SV *sur_flag;
 909         SV *point;
 910         SV *rep_form;
 911         SV *schema = 0;
 912         char *ptr;
 913         char *ODR_record;
 914         char *ODR_basename;
 915         char *ODR_errstr;
 916         WRBUF oid_dotted;
 917         Zfront_handle *zhandle = (Zfront_handle *)handle;
 918         CV* handler_cv = 0;
 919
 920         Z_RecordComposition *composition;
 921         Z_ElementSetNames *simple;
 922         Z_CompSpec *complex;
 923         STRLEN length;
 924
 925         dSP;
 926         ENTER;
 927         SAVETMPS;
 928
 929         rr->errcode = 0;
 930         href = newHV();
 931         hv_store(href, "SETNAME", 7, newSVpv(rr->setname, 0), 0);
 932         if (rr->schema)
 933                 hv_store(href, "SCHEMA", 6, newSVpv(rr->schema, 0), 0);
 934         else
 935                 hv_store(href, "SCHEMA", 6, newSVpv("", 0), 0);
 936
 937         temp = hv_store(href, "OFFSET", 6, newSViv(rr->number), 0);
 938         if (rr->request_format != 0) {
 939             oid_dotted = oid2dotted(rr->request_format);
 940         } else {
 941             /* Probably an SRU request: assume XML is required */
 942             oid_dotted = wrbuf_alloc();
 943             wrbuf_puts(oid_dotted, "1.2.840.10003.5.109.10");
 944         }
 945         hv_store(href, "REQ_FORM", 8, newSVpv((char *)oid_dotted->buf, oid_dotted->pos), 0);
 946         hv_store(href, "REP_FORM", 8, newSVpv((char *)oid_dotted->buf, oid_dotted->pos), 0);
 947         hv_store(href, "BASENAME", 8, newSVpv("", 0), 0);
 948         hv_store(href, "RECORD", 6, newSVpv("", 0), 0);
 949         hv_store(href, "LAST", 4, newSViv(0), 0);
 950         hv_store(href, "ERR_CODE", 8, newSViv(0), 0);
 951         hv_store(href, "ERR_STR", 7, newSVpv("", 0), 0);
 952         hv_store(href, "SUR_FLAG", 8, newSViv(0), 0);
 953         hv_store(href, "GHANDLE", 7, newSVsv(zhandle->ghandle), 0);
 954         hv_store(href, "HANDLE", 6, zhandle->handle, 0);
 955         hv_store(href, "PID", 3, newSViv(getpid()), 0);
 956         if (rr->comp)
 957         {
 958                 composition = rr->comp;
 959                 if (composition->which == Z_RecordComp_simple)
 960                 {
 961                         simple = composition->u.simple;
 962                         if (simple->which == Z_ElementSetNames_generic)
 963                         {
 964                                 hv_store(href, "COMP", 4, newSVpv(simple->u.generic, 0), 0);
 965                         }
 966                         else
 967                         {
 968                                 rr->errcode = 26;
 969                         }
 970                 }
 971                 else if (composition->which == Z_RecordComp_complex)
 972                 {
 973                         if (composition->u.complex->generic &&
 974
 975                                         composition->u.complex->generic &&
 976                                         composition->u.complex->generic->elementSpec &&
 977                                         composition->u.complex->generic->elementSpec->which ==
 978                                         Z_ElementSpec_elementSetName)
 979                         {
 980                                 complex = composition->u.complex;
 981                                 hv_store(href, "COMP", 4,
 982                                         newSVpv(complex->generic->elementSpec->u.elementSetName, 0), 0);
 983                         }
 984                         else
 985                         {
 986 #if 0   /* For now ignore this error, which is ubiquitous in SRU */
 987                                 fprintf(stderr, "complex is weird\n");
 988                                 rr->errcode = 26;
 989                                 return 0;
 990 #endif /*0*/
 991                         }
 992                 }
 993                 else
 994                 {
 995                         rr->errcode = 26;
 996                         return 0;
 997                 }
 998         }
 999
1000         PUSHMARK(sp);
1001
1002         XPUSHs(sv_2mortal(newRV( (SV*) href)));
1003
1004         PUTBACK;
1005
1006         handler_cv = simpleserver_sv2cv( fetch_ref );
1007         perl_call_sv( (SV *) handler_cv, G_SCALAR | G_DISCARD);
1008
1009         SPAGAIN;
1010
1011         temp = hv_fetch(href, "BASENAME", 8, 1);
1012         basename = newSVsv(*temp);
1013
1014         temp = hv_fetch(href, "RECORD", 6, 1);
1015         record = newSVsv(*temp);
1016
1017         temp = hv_fetch(href, "LAST", 4, 1);
1018         last = newSVsv(*temp);
1019
1020         temp = hv_fetch(href, "ERR_CODE", 8, 1);
1021         err_code = newSVsv(*temp);
1022
1023         temp = hv_fetch(href, "ERR_STR", 7, 1),
1024         err_string = newSVsv(*temp);
1025
1026         temp = hv_fetch(href, "SUR_FLAG", 8, 1);
1027         sur_flag = newSVsv(*temp);
1028
1029         temp = hv_fetch(href, "REP_FORM", 8, 1);
1030         rep_form = newSVsv(*temp);
1031
1032         temp = hv_fetch(href, "SCHEMA", 6, 1);
1033         if (temp != 0) {
1034                 schema = newSVsv(*temp);
1035                 ptr = SvPV(schema, length);
1036                 if (length > 0) {
1037                         rr->schema = (char *)odr_malloc(rr->stream, length + 1);
1038                         strcpy(rr->schema, ptr);
1039                 }
1040         }
1041
1042         temp = hv_fetch(href, "HANDLE", 6, 1);
1043         point = newSVsv(*temp);
1044
1045
1046         hv_undef(href);
1047
1048         ptr = SvPV(basename, length);
1049         ODR_basename = (char *)odr_malloc(rr->stream, length + 1);
1050         strcpy(ODR_basename, ptr);
1051         rr->basename = ODR_basename;
1052
1053         ptr = SvPV(rep_form, length);
1054
1055         rr->output_format = yaz_string_to_oid_odr(yaz_oid_std(),
1056                                         CLASS_RECSYN, ptr, rr->stream);
1057         if (!rr->output_format)
1058         {
1059                 printf("Net::Z3950::SimpleServer: WARNING: Bad OID %s\n", ptr);
1060                 rr->output_format =
1061                         odr_oiddup(rr->stream, yaz_oid_recsyn_sutrs);
1062         }
1063         ptr = SvPV(record, length);
1064         /* Treat GRS-1 records separately */
1065         if (!oid_oidcmp(rr->output_format, yaz_oid_recsyn_grs_1))
1066         {
1067                 rr->record = (char *) read_grs1(ptr, rr->stream);
1068                 rr->len = -1;
1069         }
1070         else
1071         {
1072                 ODR_record = (char *)odr_malloc(rr->stream, length + 1);
1073                 strcpy(ODR_record, ptr);
1074                 rr->record = ODR_record;
1075                 rr->len = length;
1076         }
1077         zhandle->handle = point;
1078         handle = zhandle;
1079         rr->last_in_set = SvIV(last);
1080
1081         if (!(rr->errcode))
1082         {
1083                 rr->errcode = SvIV(err_code);
1084                 ptr = SvPV(err_string, length);
1085                 ODR_errstr = (char *)odr_malloc(rr->stream, length + 1);
1086                 strcpy(ODR_errstr, ptr);
1087                 rr->errstring = ODR_errstr;
1088         }
1089         rr->surrogate_flag = SvIV(sur_flag);
1090
1091         wrbuf_destroy(oid_dotted);
1092         sv_free((SV*) href);
1093         sv_free(basename);
1094         sv_free(record);
1095         sv_free(last);
1096         sv_free(err_string);
1097         sv_free(err_code),
1098         sv_free(sur_flag);
1099         sv_free(rep_form);
1100
1101         if (schema)
1102                 sv_free(schema);
1103
1104         PUTBACK;
1105         FREETMPS;
1106         LEAVE;
1107
1108         return 0;
1109 }
1110
1111
1112 int bend_present(void *handle, bend_present_rr *rr)
1113 {
1114         HV *href;
1115         SV **temp;
1116         SV *err_code;
1117         SV *err_string;
1118         SV *hits;
1119         SV *point;
1120         STRLEN len;
1121         Z_RecordComposition *composition;
1122         Z_ElementSetNames *simple;
1123         Z_CompSpec *complex;
1124         char *ODR_errstr;
1125         char *ptr;
1126         Zfront_handle *zhandle = (Zfront_handle *)handle;
1127         CV* handler_cv = 0;
1128
1129 /*      WRBUF oid_dotted; */
1130
1131         dSP;
1132         ENTER;
1133         SAVETMPS;
1134
1135         href = newHV();
1136         hv_store(href, "GHANDLE", 7, newSVsv(zhandle->ghandle), 0);
1137         hv_store(href, "HANDLE", 6, zhandle->handle, 0);
1138         hv_store(href, "ERR_CODE", 8, newSViv(0), 0);
1139         hv_store(href, "ERR_STR", 7, newSVpv("", 0), 0);
1140         hv_store(href, "START", 5, newSViv(rr->start), 0);
1141         hv_store(href, "SETNAME", 7, newSVpv(rr->setname, 0), 0);
1142         hv_store(href, "NUMBER", 6, newSViv(rr->number), 0);
1143         /*oid_dotted = oid2dotted(rr->request_format_raw);
1144         hv_store(href, "REQ_FORM", 8, newSVpv((char *)oid_dotted->buf, oid_dotted->pos), 0);*/
1145         hv_store(href, "HITS", 4, newSViv(0), 0);
1146         hv_store(href, "PID", 3, newSViv(getpid()), 0);
1147         if (rr->comp)
1148         {
1149                 composition = rr->comp;
1150                 if (composition->which == Z_RecordComp_simple)
1151                 {
1152                         simple = composition->u.simple;
1153                         if (simple->which == Z_ElementSetNames_generic)
1154                         {
1155                                 hv_store(href, "COMP", 4, newSVpv(simple->u.generic, 0), 0);
1156                         }
1157                         else
1158                         {
1159                                 rr->errcode = 26;
1160                                 return 0;
1161                         }
1162                 }
1163                 else if (composition->which == Z_RecordComp_complex)
1164                 {
1165                         if (composition->u.complex->generic &&
1166
1167                                         composition->u.complex->generic &&
1168                                         composition->u.complex->generic->elementSpec &&
1169                                         composition->u.complex->generic->elementSpec->which ==
1170                                         Z_ElementSpec_elementSetName)
1171                         {
1172                                 complex = composition->u.complex;
1173                                 hv_store(href, "COMP", 4,
1174                                         newSVpv(complex->generic->elementSpec->u.elementSetName, 0), 0);
1175                         }
1176                         else
1177                         {
1178                                 rr->errcode = 26;
1179                                 return 0;
1180                         }
1181                 }
1182                 else
1183                 {
1184                         rr->errcode = 26;
1185                         return 0;
1186                 }
1187         }
1188
1189         PUSHMARK(sp);
1190
1191         XPUSHs(sv_2mortal(newRV( (SV*) href)));
1192
1193         PUTBACK;
1194
1195         handler_cv = simpleserver_sv2cv( present_ref );
1196         perl_call_sv( (SV *) handler_cv, G_SCALAR | G_DISCARD);
1197
1198         SPAGAIN;
1199
1200         temp = hv_fetch(href, "ERR_CODE", 8, 1);
1201         err_code = newSVsv(*temp);
1202
1203         temp = hv_fetch(href, "ERR_STR", 7, 1);
1204         err_string = newSVsv(*temp);
1205
1206         temp = hv_fetch(href, "HITS", 4, 1);
1207         hits = newSVsv(*temp);
1208
1209         temp = hv_fetch(href, "HANDLE", 6, 1);
1210         point = newSVsv(*temp);
1211
1212         PUTBACK;
1213         FREETMPS;
1214         LEAVE;
1215
1216         hv_undef(href);
1217         rr->errcode = SvIV(err_code);
1218         rr->hits = SvIV(hits);
1219
1220         ptr = SvPV(err_string, len);
1221         ODR_errstr = (char *)odr_malloc(rr->stream, len + 1);
1222         strcpy(ODR_errstr, ptr);
1223         rr->errstring = ODR_errstr;
1224 /*      wrbuf_free(oid_dotted, 1);*/
1225         zhandle->handle = point;
1226         handle = zhandle;
1227         sv_free(err_code);
1228         sv_free(err_string);
1229         sv_free(hits);
1230         sv_free( (SV*) href);
1231
1232         return 0;
1233 }
1234
1235
1236 int bend_esrequest(void *handle, bend_esrequest_rr *rr)
1237 {
1238         perl_call_sv(esrequest_ref, G_VOID | G_DISCARD | G_NOARGS);
1239         return 0;
1240 }
1241
1242
1243 int bend_scan(void *handle, bend_scan_rr *rr)
1244 {
1245         HV *href;
1246         AV *aref;
1247         AV *list;
1248         AV *entries;
1249         HV *scan_item;
1250         struct scan_entry *scan_list;
1251         struct scan_entry *buffer;
1252         int *step_size = rr->step_size;
1253         int i;
1254         char **basenames;
1255         SV **temp;
1256         SV *err_code = sv_newmortal();
1257         SV *err_str = sv_newmortal();
1258         SV *point = sv_newmortal();
1259         SV *status = sv_newmortal();
1260         SV *number = sv_newmortal();
1261         char *ptr;
1262         char *ODR_errstr;
1263         STRLEN len;
1264         int term_len;
1265         SV *entries_ref;
1266         Zfront_handle *zhandle = (Zfront_handle *)handle;
1267         CV* handler_cv = 0;
1268         SV *rpnSV;
1269
1270         dSP;
1271         ENTER;
1272         SAVETMPS;
1273         href = newHV();
1274         list = newAV();
1275
1276         /* RPN is better than TERM since it includes attributes */
1277         if ((rpnSV = apt2perl(rr->term)) != 0) {
1278             setMember(href, "RPN", rpnSV);
1279         }
1280
1281         if (rr->term->term->which == Z_Term_general)
1282         {
1283                 term_len = rr->term->term->u.general->len;
1284                 hv_store(href, "TERM", 4, newSVpv((char*) rr->term->term->u.general->buf, term_len), 0);
1285         } else {
1286                 rr->errcode = 229;      /* Unsupported term type */
1287                 return 0;
1288         }
1289         hv_store(href, "STEP", 4, newSViv(*step_size), 0);
1290         hv_store(href, "NUMBER", 6, newSViv(rr->num_entries), 0);
1291         hv_store(href, "POS", 3, newSViv(rr->term_position), 0);
1292         hv_store(href, "ERR_CODE", 8, newSViv(0), 0);
1293         hv_store(href, "ERR_STR", 7, newSVpv("", 0), 0);
1294         hv_store(href, "GHANDLE", 7, newSVsv(zhandle->ghandle), 0);
1295         hv_store(href, "HANDLE", 6, zhandle->handle, 0);
1296         hv_store(href, "STATUS", 6, newSViv(BEND_SCAN_SUCCESS), 0);
1297         hv_store(href, "ENTRIES", 7, newRV((SV *) list), 0);
1298         aref = newAV();
1299         basenames = rr->basenames;
1300         for (i = 0; i < rr->num_bases; i++)
1301         {
1302                 av_push(aref, newSVpv(*basenames++, 0));
1303         }
1304         hv_store(href, "DATABASES", 9, newRV( (SV*) aref), 0);
1305
1306         PUSHMARK(sp);
1307
1308         XPUSHs(sv_2mortal(newRV( (SV*) href)));
1309
1310         PUTBACK;
1311
1312         handler_cv = simpleserver_sv2cv( scan_ref );
1313         perl_call_sv( (SV *) handler_cv, G_SCALAR | G_DISCARD);
1314
1315         SPAGAIN;
1316
1317         temp = hv_fetch(href, "ERR_CODE", 8, 1);
1318         err_code = newSVsv(*temp);
1319
1320         temp = hv_fetch(href, "ERR_STR", 7, 1);
1321         err_str = newSVsv(*temp);
1322
1323         temp = hv_fetch(href, "HANDLE", 6, 1);
1324         point = newSVsv(*temp);
1325
1326         temp = hv_fetch(href, "STATUS", 6, 1);
1327         status = newSVsv(*temp);
1328
1329         temp = hv_fetch(href, "NUMBER", 6, 1);
1330         number = newSVsv(*temp);
1331
1332         temp = hv_fetch(href, "ENTRIES", 7, 1);
1333         entries_ref = newSVsv(*temp);
1334
1335         PUTBACK;
1336         FREETMPS;
1337         LEAVE;
1338
1339         ptr = SvPV(err_str, len);
1340         ODR_errstr = (char *)odr_malloc(rr->stream, len + 1);
1341         strcpy(ODR_errstr, ptr);
1342         rr->errstring = ODR_errstr;
1343         rr->errcode = SvIV(err_code);
1344         rr->num_entries = SvIV(number);
1345         rr->status = SvIV(status);
1346         scan_list = (struct scan_entry *) odr_malloc (rr->stream, rr->num_entries * sizeof(*scan_list));
1347         buffer = scan_list;
1348         entries = (AV *)SvRV(entries_ref);
1349         if (rr->errcode == 0) for (i = 0; i < rr->num_entries; i++)
1350         {
1351                 scan_item = (HV *)SvRV(sv_2mortal(av_shift(entries)));
1352                 temp = hv_fetch(scan_item, "TERM", 4, 1);
1353                 ptr = SvPV(*temp, len);
1354                 buffer->term = (char *) odr_malloc (rr->stream, len + 1);
1355                 strcpy(buffer->term, ptr);
1356                 temp = hv_fetch(scan_item, "OCCURRENCE", 10, 1);
1357                 buffer->occurrences = SvIV(*temp);
1358                 buffer++;
1359                 hv_undef(scan_item);
1360         }
1361         rr->entries = scan_list;
1362         zhandle->handle = point;
1363         handle = zhandle;
1364         sv_free(err_code);
1365         sv_free(err_str);
1366         sv_free(status);
1367         sv_free(number);
1368         hv_undef(href);
1369         sv_free((SV *)href);
1370         av_undef(aref);
1371         sv_free((SV *)aref);
1372         av_undef(list);
1373         sv_free((SV *)list);
1374         av_undef(entries);
1375         /*sv_free((SV *)entries);*/
1376         sv_free(entries_ref);
1377
1378         return 0;
1379 }
1380
1381 int bend_explain(void *handle, bend_explain_rr *q)
1382 {
1383         HV *href;
1384         CV *handler_cv = 0;
1385         SV **temp;
1386         char *explain;
1387         SV *explainsv;
1388         STRLEN len;
1389         Zfront_handle *zhandle = (Zfront_handle *)handle;
1390
1391         dSP;
1392         ENTER;
1393         SAVETMPS;
1394
1395         href = newHV();
1396         hv_store(href, "EXPLAIN", 7, newSVpv("", 0), 0);
1397         hv_store(href, "DATABASE", 8, newSVpv(q->database, 0), 0);
1398         hv_store(href, "GHANDLE", 7, newSVsv(zhandle->ghandle), 0);
1399         hv_store(href, "HANDLE", 6, zhandle->handle, 0);
1400
1401         PUSHMARK(sp);
1402         XPUSHs(sv_2mortal(newRV((SV*) href)));
1403         PUTBACK;
1404
1405         handler_cv = simpleserver_sv2cv(explain_ref);
1406         perl_call_sv((SV*) handler_cv, G_SCALAR | G_DISCARD);
1407
1408         SPAGAIN;
1409
1410         temp = hv_fetch(href, "EXPLAIN", 7, 1);
1411         explainsv = newSVsv(*temp);
1412
1413         PUTBACK;
1414         FREETMPS;
1415         LEAVE;
1416
1417         explain = SvPV(explainsv, len);
1418         q->explain_buf = (char*) odr_malloc(q->stream, len + 1);
1419         strcpy(q->explain_buf, explain);
1420
1421         return 0;
1422 }
1423
1424 bend_initresult *bend_init(bend_initrequest *q)
1425 {
1426         int dummy = simpleserver_clone();
1427         bend_initresult *r = (bend_initresult *)
1428                 odr_malloc (q->stream, sizeof(*r));
1429         char *ptr;
1430         CV* handler_cv = 0;
1431         dSP;
1432         STRLEN len;
1433         NMEM nmem = nmem_create();
1434         Zfront_handle *zhandle =  (Zfront_handle *) nmem_malloc (nmem,
1435                         sizeof(*zhandle));
1436         SV *handle;
1437         HV *href;
1438         SV **temp;
1439
1440         ENTER;
1441         SAVETMPS;
1442
1443         zhandle->ghandle = _global_ghandle;
1444         zhandle->nmem = nmem;
1445         zhandle->stop_flag = 0;
1446
1447         if (sort_ref)
1448         {
1449             q->bend_sort = bend_sort;
1450         }
1451         if (search_ref)
1452         {
1453                 q->bend_search = bend_search;
1454         }
1455         if (present_ref)
1456         {
1457                 q->bend_present = bend_present;
1458         }
1459         /*q->bend_esrequest = bend_esrequest;*/
1460         if (delete_ref) {
1461                 q->bend_delete = bend_delete;
1462         }
1463         if (fetch_ref)
1464         {
1465                 q->bend_fetch = bend_fetch;
1466         }
1467         if (scan_ref)
1468         {
1469                 q->bend_scan = bend_scan;
1470         }
1471         if (explain_ref)
1472         {
1473                 q->bend_explain = bend_explain;
1474         }
1475
1476         href = newHV();
1477         hv_store(href, "IMP_ID", 6, newSVpv("", 0), 0);
1478         hv_store(href, "IMP_NAME", 8, newSVpv("", 0), 0);
1479         hv_store(href, "IMP_VER", 7, newSVpv("", 0), 0);
1480         hv_store(href, "ERR_CODE", 8, newSViv(0), 0);
1481         hv_store(href, "ERR_STR", 7, newSViv(0), 0);
1482         hv_store(href, "PEER_NAME", 9, newSVpv(q->peer_name, 0), 0);
1483         hv_store(href, "GHANDLE", 7, newSVsv(zhandle->ghandle), 0);
1484         hv_store(href, "HANDLE", 6, newSVsv(&sv_undef), 0);
1485         hv_store(href, "PID", 3, newSViv(getpid()), 0);
1486         if (q->auth) {
1487             char *user = NULL;
1488             char *passwd = NULL;
1489             if (q->auth->which == Z_IdAuthentication_open) {
1490                 char *cp;
1491                 user = nmem_strdup (odr_getmem (q->stream), q->auth->u.open);
1492                 cp = strchr (user, '/');
1493                 if (cp) {
1494                     /* password after / given */
1495                     *cp = '\0';
1496                     passwd = cp+1;
1497                 }
1498             } else if (q->auth->which == Z_IdAuthentication_idPass) {
1499                 user = q->auth->u.idPass->userId;
1500                 passwd = q->auth->u.idPass->password;
1501             }
1502             /* ### some code paths have user/password unassigned here */
1503             if (user)
1504                 hv_store(href, "USER", 4, newSVpv(user, 0), 0);
1505             if (passwd)
1506                 hv_store(href, "PASS", 4, newSVpv(passwd, 0), 0);
1507         }
1508
1509         PUSHMARK(sp);
1510
1511         XPUSHs(sv_2mortal(newRV((SV*) href)));
1512
1513         PUTBACK;
1514
1515         if (init_ref != NULL)
1516         {
1517              handler_cv = simpleserver_sv2cv( init_ref );
1518              perl_call_sv( (SV *) handler_cv, G_SCALAR | G_DISCARD);
1519         }
1520
1521         SPAGAIN;
1522
1523         temp = hv_fetch(href, "IMP_ID", 6, 1);
1524         ptr = SvPV(*temp, len);
1525         q->implementation_id = nmem_strdup(nmem, ptr);
1526
1527         temp = hv_fetch(href, "IMP_NAME", 8, 1);
1528         ptr = SvPV(*temp, len);
1529         q->implementation_name = nmem_strdup(nmem, ptr);
1530
1531         temp = hv_fetch(href, "IMP_VER", 7, 1);
1532         ptr = SvPV(*temp, len);
1533         q->implementation_version = nmem_strdup(nmem, ptr);
1534
1535         temp = hv_fetch(href, "ERR_CODE", 8, 1);
1536         r->errcode = SvIV(*temp);
1537
1538         temp = hv_fetch(href, "ERR_STR", 7, 1);
1539         ptr = SvPV(*temp, len);
1540         r->errstring = (char *)odr_malloc(q->stream, len + 1);
1541         strcpy(r->errstring, ptr);
1542
1543         temp = hv_fetch(href, "HANDLE", 6, 1);
1544         handle= newSVsv(*temp);
1545         zhandle->handle = handle;
1546
1547         r->handle = zhandle;
1548
1549         hv_undef(href);
1550         sv_free((SV*) href);
1551
1552         PUTBACK;
1553         FREETMPS;
1554         LEAVE;
1555
1556         return r;
1557 }
1558
1559 void bend_close(void *handle)
1560 {
1561         HV *href;
1562         Zfront_handle *zhandle = (Zfront_handle *)handle;
1563         CV* handler_cv = 0;
1564         int stop_flag = 0;
1565         dSP;
1566         ENTER;
1567         SAVETMPS;
1568
1569         if (close_ref)
1570         {
1571                 href = newHV();
1572                 hv_store(href, "GHANDLE", 7, newSVsv(zhandle->ghandle), 0);
1573                 hv_store(href, "HANDLE", 6, zhandle->handle, 0);
1574
1575                 PUSHMARK(sp);
1576
1577                 XPUSHs(sv_2mortal(newRV((SV *)href)));
1578
1579                 PUTBACK;
1580
1581                 handler_cv = simpleserver_sv2cv( close_ref );
1582                 perl_call_sv( (SV *) handler_cv, G_SCALAR | G_DISCARD);
1583
1584                 SPAGAIN;
1585
1586                 sv_free((SV*) href);
1587         }
1588         else
1589                 sv_free(zhandle->handle);
1590         PUTBACK;
1591         FREETMPS;
1592         LEAVE;
1593         stop_flag = zhandle->stop_flag;
1594         nmem_destroy(zhandle->nmem);
1595         simpleserver_free();
1596
1597         if (stop_flag)
1598                 exit(0);
1599         return;
1600 }
1601
1602
1603 MODULE = Net::Z3950::SimpleServer       PACKAGE = Net::Z3950::SimpleServer
1604
1605 PROTOTYPES: DISABLE
1606
1607
1608 void
1609 set_ghandle(arg)
1610                 SV *arg
1611         CODE:
1612                 _global_ghandle = newSVsv(arg);
1613
1614
1615 void
1616 set_init_handler(arg)
1617                 SV *arg
1618         CODE:
1619                 init_ref = newSVsv(arg);
1620
1621
1622 void
1623 set_close_handler(arg)
1624                 SV *arg
1625         CODE:
1626                 close_ref = newSVsv(arg);
1627
1628
1629 void
1630 set_sort_handler(arg)
1631                 SV *arg
1632         CODE:
1633                 sort_ref = newSVsv(arg);
1634
1635 void
1636 set_search_handler(arg)
1637                 SV *arg
1638         CODE:
1639                 search_ref = newSVsv(arg);
1640
1641
1642 void
1643 set_fetch_handler(arg)
1644                 SV *arg
1645         CODE:
1646                 fetch_ref = newSVsv(arg);
1647
1648
1649 void
1650 set_present_handler(arg)
1651                 SV *arg
1652         CODE:
1653                 present_ref = newSVsv(arg);
1654
1655
1656 void
1657 set_esrequest_handler(arg)
1658                 SV *arg
1659         CODE:
1660                 esrequest_ref = newSVsv(arg);
1661
1662
1663 void
1664 set_delete_handler(arg)
1665                 SV *arg
1666         CODE:
1667                 delete_ref = newSVsv(arg);
1668
1669
1670 void
1671 set_scan_handler(arg)
1672                 SV *arg
1673         CODE:
1674                 scan_ref = newSVsv(arg);
1675
1676 void
1677 set_explain_handler(arg)
1678                 SV *arg
1679         CODE:
1680                 explain_ref = newSVsv(arg);
1681
1682 int
1683 start_server(...)
1684         PREINIT:
1685                 char **argv;
1686                 char **argv_buf;
1687                 char *ptr;
1688                 int i;
1689                 STRLEN len;
1690         CODE:
1691                 argv_buf = (char **)xmalloc((items + 1) * sizeof(char *));
1692                 argv = argv_buf;
1693                 for (i = 0; i < items; i++)
1694                 {
1695                         ptr = SvPV(ST(i), len);
1696                         *argv_buf = (char *)xmalloc(len + 1);
1697                         strcpy(*argv_buf++, ptr);
1698                 }
1699                 *argv_buf = NULL;
1700                 root_perl_context = PERL_GET_CONTEXT;
1701                 yaz_mutex_create(&simpleserver_mutex);
1702 #if 0
1703                 /* only for debugging perl_clone .. */
1704                 tst_clones();
1705 #endif
1706
1707                 RETVAL = statserv_main(items, argv, bend_init, bend_close);
1708         OUTPUT:
1709                 RETVAL
1710
1711
1712 int
1713 ScanSuccess()
1714         CODE:
1715                 RETVAL = BEND_SCAN_SUCCESS;
1716         OUTPUT:
1717                 RETVAL
1718
1719 int
1720 ScanPartial()
1721         CODE:
1722                 RETVAL = BEND_SCAN_PARTIAL;
1723         OUTPUT:
1724                 RETVAL
1725
1726
1727 void
1728 yazlog(arg)
1729                 SV *arg
1730         CODE:
1731                 STRLEN len;
1732                 char *ptr;
1733                 ptr = SvPV(arg, len);
1734                 yaz_log(YLOG_LOG, "%.*s", len, ptr);
1735
1736 int
1737 yaz_diag_srw_to_bib1(srw_code)
1738         int srw_code
1739
1740 int
1741 yaz_diag_bib1_to_srw(bib1_code)
1742         int bib1_code
1743